RARE BREED TRIGGER THINGS TO KNOW BEFORE YOU BUY

There have already been a number of things that the FATF mentioned ended up a no no and also a judge someplace would strike down. As it pertains to FRTs, are these legal to acquire anywhere or can it be just Texas?  Do You will need to certainly be a member of some gun rights org? If you're a member of that org can you purchase them everywhere?Nev